Island



0 1 1 V I Oct 1927 P. A. RAICHE ET AL MACHINE FOR GUMMING THE EDGES OF NIPPLES Filed M r 17, 1926 3 Sheets-Sheet 1 iz-:51 YI w @w n 3 164 5 1927' P. A. RAICHE ET AL 9 MACHINE FOR GUMMING THE EDGES OF NIPPLES Filed March 17, 1926 3 Shqets-Sheet 3 27 7 8 -1 K x/ m4) Patented a. 1a, 1927.

UNITED STATES PATENT OFFICE.

PAUL A. RAICHE AND THOMAS B. BOWLING, OF PROVIDENCE, AND THOMAS J. BRIDES,

OF WARWICK, RHODE ISLAND, ASSIGNOBS TO DAVOL RUBBER COMPAN Y, OF PROVI- DENCE, RHODE ISLAND.

MACHINE IEOR GUMMING THE EDGES 0F NIPPLES.

A pplication filed March 1'7, 1926. Serial No. 95,408.

This invention relates to certain new and useful improvements in a machine for gummingthe edges of nipples, and the primary object thereof is to provide a machine which 6 automatically applies liquid gum or adhesive to each of the opposite. side edges of the two blanks that conjointly form the nipple, preparatory to curing and finishing.

A. further object of the invention is to provide a machine of this type which effects drying of the gum and thereafter automatically discharges the gmmned and dried nipple onto a conveyor which latter carries same to the operator for finishing and curinn;

'5 In the drawings Figure 1 is a side elevation of the invention, the frame being omitted;

Figure 2 is an end elevation showing the means for operating the parts;

Figure is an enlarged section on line 3-4-3 of Figure 1,

Figure 4 is an enlarged detail view of the jaw opening device.

Figure 5 is a plan view of the companion nipple blanks,

Figure 6 is an edge view of the nipple blanks after gnmming of their side edges.

1n proceeding in accordance with the present invention a wheel 1 is located at the front end of the machine and is equipped on its outer side face. with a series of pockets 2 pivoted thereto as indicated at 3. The

pockets are, as shown in Fig. 1, connected to the wheel so that when the pockets reach the highest point of travel of the wheel same will have their open tops disposed substantially at such highest point so as to cause the two companion nipple blanks that are held in the pockets to have their upper ends project above the wheel, for a purpose later set forth. The pockets are pivoted to the wheel so that upon rotation of the latter, the pockets will always lie in a true vertical plane. The pockets are also shaped and of a size so as to hold the companion or complementary blanks 4 and 5 in registering and face. to face contact therein.

As shown in Figure 2 of the drawings. a

frame 6 is employed and to which the wheel 1 is journaled on a shaft 7.

The carrier consists of a pair of endless chains 8 and 9 (Fig. 2) the chains being trained over relatively large sprocket wheels 10 at the rear of the machine and over smaller sprockets 11, 12 and 13. Of these smaller sprockets 11 is at the front of the machine and disposed above wheel 1, wheel 12 is located in front of wheel 10 and below wheel 11, while wheel 13 is located below 00 wheel 12 and in front of the latter. The chain accordingly has four flights 14, 15, 16 and 17, and of which latter flight 16 travels just above wheel 1. As shown in Figures 3 and 4 of the drawmgs, the chains are connected by transverse pins 18. The pins 18 extend through perforations provided therefor in a pair of 0pposed clips 19, the latter being pivoted to-- gether at 20 and having parts 21 which cross each other and which terminate in jaws 22 formed to engage the blanks 4 and 5 and to clampingly hold same for movement with the carrier. A coil spring 23 encircles the pin 18 and bears at its ends against the clips 10 thereby to normally tension the jaws 22 so that the latter aproach or move toward each other.

()pening devices for the clips or jaws are employed and since each is identical with the other, a. description of one. will sntlice. As shown in Fig. 4 a substantially C-shaped shoe 24; is employed, the side edges 25 of which provide cam edges which engage the clips 19 and force same together, thereby spreading or opening the jaws 22 to release the gummcd blank or to permit an ungummed blank to be gripped by the jaws. The upper faces of the confronting sides 26 of the shoe afford tracks upon which the chains 8 and 9 ride and are guided during opening of the jaws thereby to assure proper relation of the latter to the cam edges 25 and consequent proper functioning of the parts. A runner or track 26 is arranged on the under face of the top of the shoe and has its ends curved upwardly and secured at 27 t0 the top of the shoe. This track or runner engages the upper or top parts of the clips 19 so as to hold the same against upward movement upon spreading of the jaws 22. As depicted in Figure of the drawings there are two opening devices, one located just above wheel 1 and the other adjacent and to'-the rear of wheel 11 and below the flight 17 of the carrier. A conveyor 27 operating on tracks 28 lies below the upper opening device so as to receive the gummed nipples from the carrier. Tanks 29 and 30 containin liquid gum or adhesive are positioned below the carrier flights 15 and 16 respectively and having part ally submerged rollers 31 and 32 respectively therein. Shaft 7 may be driven in any suitable manner and has a gear wheel 33 thereon in mesh with a ear 34; the latter in turn being in mesh Wlth'fl gear 35. The gear 35 is in mesh with a gear 36 on'the shaft 37 of the wheel 11.

In operation, the operator places the two blanks into register and in the pockets 2 of the wheel 1, the machine being in slow 0 eration or may be stopped while all of t e pockets of the wheel are being filled or charged with the blanks. As the jaws 22 approach the opening device above wheel 1, same are opened and the upper ends of the blanks t and 5 are simultaneously moved by the rotation of the wheel 1 to lie in a position between the jaws 22. As the jaws are moved by the carrier movement out of engagement with the opening device, the jaws under the tension of spring 23 close and clamp or grip the two blanks therebetween.

The carrier then carries the blanks over and into engagement with the gumming or gum spreading roller 32 and due to the ivotal mounting of the pockets 2, it wil be seen that the thenunder side edges of the blanks will be dragged over the roller and the latter will apply or spread gum over the said edges of the blank. The carrier upon continued movement thereof, then conveys the blanks over the roller 31 whereupon the latter spreads or applies gums to the opposite side edges of the blanks, which latter edges are then lowermost due to the fact that the blanks are first moved in one direction, and then in the opposite direction. After leaving roller 31, the blanks gummed on each of their opposed side edges, are then slowly conveyed rearwardly throughout the extent of flight 24, thence upwardly and finally forwardly throughout the extent of flight 17 until encountering the upper opening device, which latter releases the thengummed and dried blanks and permits same to gravitate onto conveyor 27. The conveyor 27 conveys the blanks to the operator who opens and places same upon forms and then cures same for the finishing process.

It will be noted that the flights 14 and 17 are made of suflicient length so as to afford the necessary time for dr ing between the final gummin step and t e release of the blanks from the carrier;

Having thus described our'invention, what we claim as new and desire to secure by Letters Patent i's 1. A machine for gumming the opposed side edges of complementary nipple b anks, including a blank-carrying wheel, pivoted blank receiving pockets carried by the wheel, carrier wheels located in advance of and rearwardly of the first named wheels, an upper and a lower carrier wheel spaced from the latter and located between the first mentioned carrier wheels, an endless carrier trained over the carrier wheels, nipple blank grippers carried by the carrier, means located above the blank-carrying wheel to open the grippers to enable same to receive the blanks, means to release the grippers to permit the blanks to gravitate therefrom, and

gum applying means located between the upper and lower carrier wheels so as to apply gum to the opposite side edges of the blanks.

2. A machine for gumming the opposed side edges of com lementary nipple blanks, including blank eeding means, a carrier,

pivoted blank grippers carried by the carricr, means to actuate the grippers to admit the blanks from the feeding means, means in the path of travel of the carrier to apply adhesive solely toone of the side edges of the blanks and to support the blanks during applying of the adhesive, means in the path of travel of the carrier to apply adhesive solely to the opposite side edges of the blanks and to support the blanks during applying of the adhesive, and means to release the blanks from the grippers.

3. A machine for applying adhesive to the opposite side edges of nipple-forming blanks, including an endless carrier, pivoted blank grippers on the carrier, said carrier having flights travelling in opposite directions. and adhesive applying means associated with each flight whereby to apply adhesive solely to the opposite side edges of the blanks and to sup ort the blanks during applying of the adhesive upon respective opposite movement of the blanks.

Inc

4. A machine for applying adhesive to the opposite side edges of nipple-formin blanks, including an endless carrier, pivote blank grippers on the carrier, said carrier having flights travelling in opposite directions, and adhesive applying means associated with each flight whereby toap ly adhesive solely to the opposite side e ges of the blanks and to support the blanks during applying of the adhesive upon respective opposite movement of the blanks, means to actuate the grippers to'admit the blanks .thereto, and other means to actuate the grippers to release the blanks.

5. In a machine for applying adhesive to the opposite side edges of nipple-forming blanks, a carrier having oppositely moving parts, pivoted grippers on the carrier, and adhesive applying means cooperating with said oppositely moving arts whereby to apply adhesive solely to the opposite edges of the blanks and to sup ort the blanks during applying of the adhesive upon movement of the carrier parts in the respective opposlte directions thereof.

(3. In a machine for applying adhesive to the opposite side edges of nipple-form ng blanks, a carrier having oppositely moving parts, pivoted grippers on the carrier and a pair of adhesive applying means cooperating with said parts and arranged to permit the grippers to drag the edges of the blanks thereover so as to apply adhesive solely to the said blank edges and to support the blanks during applying of the adheslve.

7. In a machine or gumming the edges of complementary nipple blanks, a source of adhesive supply, spaced adhesive applying means, means whereby to provide said applying means with such quantity of the adhesive so as to solely coat the edges of the blanks, conveying means, means to movably support the blanks from the convey ng means, and means to mount the conveying means whereby to cause the blanks to be first dragged over one of the applying means and in engagement therewith to coat the edges of one side of the blanks and then dragged over the other applying means and in engagement therewith to coat the edges on the other side of the blanks.

8. In a machine for applying adhesive to the side edges of nipple-forming blanks, adhesive applying means and means pivotally carrying the blanks to drag the latter over and while held supported by adhesive applying means so as to apply adhesive solely to the said blank edges.

S). In a machine for gumming the edges of complementary nipple blanks, rotatable adhesive applying means, conveying means, means to actuate the conveying means so as to drag the blanks over the applying means thereby to solely coat the blank edges, and means whereby to permit the blanks during their engagement with the applying means to move relative to the latter so as to have their edges conform to the applying means.

10. In a machine for applying adhesive to the opposite side edges of nipple blanks, means to pivotally carry and move the blanks first in one and then in another direction, and adhesive applying means arranged to engage the edges of the blanks and support the latter when moved in each of said directions so as to enable the moving means to drag the blanks thereover so as to apply adhesive solely to the said blank edges.

11. In a machine for gumming the side edges of complementary nipple blanks, adhesive applying means, and means remove the blanks into engagement with the adhesive applying means so as to be supported thereby and in varying directions so as to first and solely coat one and then the other of the side edges thereof with adhesive.

12. The hereindescribed method of applying adhesive solely to the edges of complementary blanks, which resides in dragging the blanks first in one and then in the opposite direction over a surface having thereon adhesive of a depth so as to solely coat the opposite side edges of the blanks.

13. The hereindescribed method of applying adhesive solely to the edges of complementary blanks so as to unite such edges, which resides in dragging the blanks over a surface having thereon adhesive of a depth so as to solely coat the blank edges.

14. The herein'described method of applying adhesive solely to the edges of complementary blanks so as to unite such edges, which resides in gripping the blanks at one end thereof so as to leave the opposite ends free for movement laterally of the blanks and then in longitudinally dragging the blanks over adhesive of a depth so as to solely coat the blank edges by the combined longitudinal and lateral movement of the blanks. 1."). The hereindescribed method of applymg adhesive solely to the edges of complementary blanks so as to unite such edges, which resides in dragging the blanks over a surface having thereon adhesive of a depth so as to coat solely the edges on one side of the blanks and in then dragging the blanks over a surface having thereon adhesive of a depth so as to coat solely the edges on the opposite sides of the blank.

16. In a machine for gumming the edges of complementary nipple blanks, adhesive applying means for applying a coat of ad hesive solely to the edges of the blanks, means to drag the blanks longitudinally thereof over and in engagement with the applying means. and means to permit movement of the blanks laterally of the latter so as to permit the blank edges to conform to the surface of the applying means.

17. In a machine of the type set forth, means for applying a coat of adhesive solely to the edge of an article, means for 'dragging the article longitudinally thereof over the applying means so as to be supported by the latter, and means for permitting simultan-eons lateral movement of the article during dragging thereof so as to conform its said edge to the surface of the applying means.

18. In a machine for gumming the edges of complementary blanks to unite same, means for applying a coat of adhesive solely to the adjacent edges of the blanks so as to proltH) l0 portions which cross one another and having their opposite ends free, means to tension the jaws, and means engageable with the parts of the jaws between the pivot and the crossed portions thereof to-spreadth'e free ends of the jaws.

' In testimony whereof we have signed our names to this specification.

, PAUL A. RAICHE; I.

THOMAS B. DOWLING. THOMAS J. BRIDES. 

